The RIST activity group within the Video Services Forum is working on a proposal to carry Reliable Internet Stream Transport over WebTransport. The goal is to let widely deployed web browsers originate and receive live media using RIST's retransmission and security mechanisms.
WebTransport runs over HTTP/3 and QUIC, offering multiplexed transport without the head-of-line blocking associated with TCP. The proposal uses LibRIST, the open-source implementation maintained by SipRadius, to add media-specific packet recovery and one-to-many behaviour rather than treating QUIC as a complete broadcast protocol by itself.
If standardised and implemented, RIST over WebTransport could reduce the need for dedicated receiver applications at monitoring or contribution endpoints. The work is still in specification, however; the source does not provide an adopted profile, interoperable implementations, performance data or a deployment timetable.
